Home / 3,620.94-5,431.34-1,023.90

Finding the Fourth Proportional to 3,620.94, 5,431.34 and 1,023.90

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Solution

The fourth proportional to 3,620.94, 5,431.34 and 1,023.90 is: 1,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.94 : 5,431.34 = 1,023.90 : x
  2. Step 2: Convert to fraction form
    3,620.94/5,431.34 = 1,023.90/x
  3. Step 3: Cross multiply
    3,620.94x = 5,431.34 × 1,023.90
  4. Step 4: Simplify right side
    3,620.94x = 5,561,149.03
  5. Step 5: Solve for x
    x = 5,561,149.03/3,620.94
  6. Step 6: Final answer
    x = 1,535.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.